﻿using System;
using System.Diagnostics;
using System.Globalization;
using System.Runtime.InteropServices;
using System.ComponentModel.Design;
using Microsoft.Win32;
using Microsoft.VisualStudio;
using Microsoft.VisualStudio.Shell.Interop;
using Microsoft.VisualStudio.OLE.Interop;
using Microsoft.VisualStudio.Shell;
using EnvDTE;

namespace ThreadSafe.JSense.VS2012
{
   /// <summary>
   /// This is the class that implements the package exposed by this assembly.
   ///
   /// The minimum requirement for a class to be considered a valid package for Visual Studio
   /// is to implement the IVsPackage interface and register itself with the shell.
   /// This package uses the helper classes defined inside the Managed Package Framework (MPF)
   /// to do it: it derives from the Package class that provides the implementation of the 
   /// IVsPackage interface and uses the registration attributes defined in the framework to 
   /// register itself and its components with the shell.
   /// </summary>
   // This attribute tells the PkgDef creation utility (CreatePkgDef.exe) that this class is
   // a package.
   [PackageRegistration(UseManagedResourcesOnly = true)]
   // This attribute is used to register the information needed to show this package
   // in the Help/About dialog of Visual Studio.
   [InstalledProductRegistration("#110", "#112", "1.0", IconResourceID = 400)]
   // This attribute is needed to let the shell know that this package exposes some menus.
   [ProvideMenuResource("Menus.ctmenu", 1)]
   [Guid(GuidList.guidThreadSafe_JSense_2012PkgString)]
   public sealed class ThreadSafe_JSense_2012Package : Package
   {
      /// <summary>
      /// Default constructor of the package.
      /// Inside this method you can place any initialization code that does not require 
      /// any Visual Studio service because at this point the package object is created but 
      /// not sited yet inside Visual Studio environment. The place to do all the other 
      /// initialization is the Initialize method.
      /// </summary>
      public ThreadSafe_JSense_2012Package()
      {
         Trace.WriteLine(string.Format(CultureInfo.CurrentCulture, "Entering constructor for: {0}", this.ToString()));
      }



      /////////////////////////////////////////////////////////////////////////////
      // Overridden Package Implementation
      #region Package Members

      /// <summary>
      /// Initialization of the package; this method is called right after the package is sited, so this is the place
      /// where you can put all the initialization code that rely on services provided by VisualStudio.
      /// </summary>
      protected override void Initialize()
      {
         Trace.WriteLine(string.Format(CultureInfo.CurrentCulture, "Entering Initialize() of: {0}", this.ToString()));
         base.Initialize();

         new JSense((DTE)GetService(typeof(DTE))).Initialize();

         // Add our command handlers for menu (commands must exist in the .vsct file)
         OleMenuCommandService mcs = GetService(typeof(IMenuCommandService)) as OleMenuCommandService;
         if (null != mcs)
         {
            // Create the command for the menu item.
            CommandID menuCommandID = new CommandID(GuidList.guidThreadSafe_JSense_2012CmdSet, (int)PkgCmdIDList.cmdidJSenseGenerate);
            MenuCommand menuItem = new MenuCommand(MenuItemCallback, menuCommandID);
            mcs.AddCommand(menuItem);
         }
      }


      #endregion

      /// <summary>
      /// This function is the callback used to execute a command when the a menu item is clicked.
      /// See the Initialize method to see how the menu item is associated to this function using
      /// the OleMenuCommandService service and the MenuCommand class.
      /// </summary>
      private void MenuItemCallback(object sender, EventArgs e)
      {
         // Get an instance of the currently running Visual Studio IDE.
         var dte2 = (DTE)GetService(typeof(DTE));

         var jSenseCommand = new JSenseCommand(dte2);
         if (!jSenseCommand.JSense())
            ShowAlert("JSensing Error", "Please examine @JSense.log for more details.", OLEMSGICON.OLEMSGICON_CRITICAL);
         /*else
            ShowAlert("JSensing Completed", "Press shift + ctrl + J to update IntelliSense.", OLEMSGICON.OLEMSGICON_INFO);*/
      }

      private void ShowAlert(string title, string message, OLEMSGICON olemsgicon)
      {
         var uiShell = (IVsUIShell)GetService(typeof(SVsUIShell));
         var clsid = Guid.Empty;
         int result;
         ErrorHandler.ThrowOnFailure(uiShell.ShowMessageBox(
            0,
            ref clsid,
            title,
            message,
            string.Empty,
            0,
            OLEMSGBUTTON.OLEMSGBUTTON_OK,
            OLEMSGDEFBUTTON.OLEMSGDEFBUTTON_FIRST,
            olemsgicon,
            0, // false
            out result));
      }

   }
}
